单词	spectroscope
释义	spectroscope /ˈspɛktrəskəʊp / noun An apparatus for producing and recording spectra for examination.Janssen used an instrument called a spectroscope to analyze the sunlight.... In 1868, the French astronomer Pierre Janssen studied light from the Sun during a solar eclipse using a spectroscope. In 1859, Kirchoff and Bunsen invented the spectroscope and demonstrated that different atoms absorb and emit different wavelengths of light.
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